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70672670 = 2557112377
BaseRepresentation
bin1000011011001…
…10000100011110
311220222112200022
410031212010132
5121043011140
611002432142
71515464525
oct415460436
9156875608
1070672670
1136990472
121b802652
1311845a63
1495594bc
1563100b5
hex436611e

70672670 has 16 divisors (see below), whose sum is σ = 127443888. Its totient is φ = 28217280.

The previous prime is 70672663. The next prime is 70672673. The reversal of 70672670 is 7627607.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70672670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70672673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479 + ... + 11898.

It is an arithmetic number, because the mean of its divisors is an integer number (7965243).

Almost surely, 270672670 is an apocalyptic number.

70672670 is a deficient number, since it is larger than the sum of its proper divisors (56771218).

70672670 is a wasteful number, since it uses less digits than its factorization.

70672670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12955.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 70672670 is about 8406.7038725056. The cubic root of 70672670 is about 413.4444499789. Note that the first 5 decimals are identical.

The spelling of 70672670 in words is "seventy million, six hundred seventy-two thousand, six hundred seventy".

Divisors: 1 2 5 10 571 1142 2855 5710 12377 24754 61885 123770 7067267 14134534 35336335 70672670